Reference:Straw1956b
Revision as of 13:23, 20 August 2020 by imported>Unknown user
Verbatim text: Straw, R. M. 1956b. Floral isolation in Penstemon. Amer. Naturalist 90: 47–53.
Author: Straw, R.M.
Year: 1956b
Title: Floral isolation in Penstemon
Journal: Amer. Naturalist
Volume: 90
Pages: 47–53